Thank you very much for fast reply. I was thinking almost the same regarding the drivers but this was cheap solution for some basic setup and like i wrote, this is the first time i use this board. The A498 driver has on chip cooler and cooler is totally cold. When i run test on pronterface the motor starts and the whole motor is "shaking" but shaft is still. Anyhow, i will try to change the confby Arnix - Reprappers
Hi to all. I need to setup 3 stepper motors on the makerbase board. I didnt use this board before but i run some basic setup and i uploaded Marlin 2.1.2 on to the board. I also set A4988 stepper driver on the board. When i run pronterface i can see successful connection on com 5 and i can also see that marlin 2.1.2. is installed. Basically everything is working but now i need to set maximum speby Arnix - Reprappers
Hi to all. Does someone knows where ( in Europe ) can i buy carbon tubes that are over 1 meter long and at least 2cm in diameter ? Best regards ! Arnixby Arnix - Delta Machines
Hi to all. Does someone knows where ( in Europe ) can i buy carbon tubes that are longer then 1 meter and at least 2cm in diameter ? Best regards ! Arnixby Arnix - Extruded Aluminum Frames
Hi. I know that there is a way to connect some encoder to duet, if the motor has his own controller. Can someone suggest one of those motor/encoders ? Beside this, i would like to implement zero backslash gearbox, so if there is some ready made solution , that would be great... A.by Arnix - Delta Machines
Hi to all. After some time off we have finally started to work again on our rotary delta robot. I have few different questions so i will separate them in different topics. OK. Is there a way to run 3 servo motors ( integrated ) on duet ? If so, how should this work in program itself ? In other words, when the servo setup is done and servo is connected to duet, can i just send standard G1 commaby Arnix - Delta Machines
OK. Thnx for input. I will add this to list of options :-) Basically, one option should be used for "small" errors and second for power cut off. In end effect i want to make this user friendly as much as possible. This is why i was planning to reset the vision program after some small error acours. E.g. G28 + trigger on some python script which will reset vision system. In this case reset wouldby Arnix - Delta Machines
Am planning to add two external button switches. Something like this: One for emergency stop, and one for G28 command and continuing with program execution ( reset with vision program auto start ). At the moment PC ---> Duet comm is done over USB cable. What would be "best" way to read this impulse and pass it to running program ? Arduino --> serial2USB converter --> reading data frby Arnix - Delta Machines
I will make just one fast copy/ paste reply and for rest we can hear us tomorrow... This is the code that am using for locating and picking up. Btw. we added Z25 just because this up/down alignment but i will try your suggestion. x, y = object strCode = 'G1 X' + str(x) + ' Y' + str(y) + ' Z25' + ' F50000' ser.write(str.encode(strCode + '\n'))by Arnix - Delta Machines
Hi O_lampe and thank you for reply. I agree that DC42 will know what to do. Unfortunately, i didnt have opportunity to meet him in person, but he helped me a lot with his comments and support. Problem is that i have bunch of tasks to complete and fine tuning of robot is just one of them. I was looking at our skype conversation and i found few things that i can set but am missing correct A and Rby Arnix - Delta Machines
Hi. I was trying to change A and R values in my M669 command because those are the only values that am not 100% sure. Anyhow, after numerous changes i still have the same problem This is the sequence that is executed manually : G28 ---> executed OK, homing OK G1 Z20 X0 Y0 F1000 ---> executed OK ( low speed ) G1 Z20 X100 Y0 F1000 ---> executed OK G1 Z20 X0 Y0 F1000 ---> executed Oby Arnix - Delta Machines
Hi. Is it possible to repeat gcode process for some amount of times ? While, IF loops ? Directly in gcode... Arnixby Arnix - Delta Machines
I think it's time that i start to believe in Murphy's law :-). Specially when i need to make something in a hurry... I searched for similar command on google, changed wires ( one pair and then both pairs ) and finally all is in config file. And pointed out...... Anyhow :-) Today, we have added additional construction support and reduced the weight for cca 450 grams. Pickup time from one outer liby Arnix - Delta Machines
Hi. In our new robot design, we have switched position of the motor from left to right side so all the movement is inverted. Black / green / blue / red is normal connection and i try it to change with green/black/red/blue but nothing happens. Has someone some suggestion? This is the motor that am using: Best regards !by Arnix - Delta Machines
Hi David, thank you for reply. I will send you mail tomorrow. Please be so kind and take a look. btw.we have solved the problem with vibrations and stability. Best regards ! Arnixby Arnix - Delta Machines
Hi to all. I will add 3x TB6600 external drive to my existing duet3d board. If someone has test/made such setup, please be so kind and take a look at the attach. Is this correct wiring ? Btw. i will use 12V/5A for power supply. Arnixby Arnix - Delta Machines
Hi O_lampe ! I have set 10 pcb's for production and they will be ready in few days. After i solder them, i can send the results. So, according to specs, this can be used in RRF. How can i wire this to DUET3D ? As you know, am using nema23 / 1.8 degrees / 3A motors with inbuilt 10:1 gearbox. From mechanical point, i can easily connect them to each motor shaft but how should i do the wiring toby Arnix - Delta Machines
Yes, its mechanically reachable. So it could be firmware bug.... We will see. Regards !by Arnix - Delta Machines
Did someone try to use this, on RRF with some stepper motor ? Regards ! A.by Arnix - Delta Machines
@tabana I agree with you regarding DC motors, but this can be implemented in V.2 ( if necessary ). At the begginig i was quite sceptic regarding the speed and perfomance of stepper, but after bunch of test i must say am quite satisfied. I can make pick and place under one second and this is OK for first version. When i solve vibration and ring part, it should be quite good piece of equipment. @hby Arnix - Delta Machines
Regarding the HW... I can add some optical encoder and i guess this should do the trick. There is one major thing to solve.... stabilization rod in the middle of robot. Im always impress when i see ABB flexpicker at work, but this one, as any other big size robot, uses some kind of stabilization. As you can see, moving speed from some X to some Y point is really fast, but there is no or almostby Arnix - Delta Machines
@hercek - thank you for explanation between open and close systems. I didnt take this in consideration when i was defining design of the robot, but i still can change the HW. If i have to choose i would say that i will rather add some HW part/sensor. Firmware can be updated in the near future.... Can you suggest some encoder for nema23 / 1,8 degrees 3A motor with installed 10:1 gearbox ? Or maby Arnix - Delta Machines
Hi guys and thank you all for replay. I will try all your suggestions, but i do have one more problem. Regardless the speed, i can see "ring " on every axis and this is additional problem regarding vibrations ( at higher speeds ). E.g. if i test separately every axis, you can clearly see ring some 20 cm from base and outer radius is 50 cm from base so this has nothing to do with robot boundariesby Arnix - Delta Machines
QuoteArnix Hi to all. Im wondering if it's possible to reduce movement speed few cm before endpoint. e.g. if the object is, lets say 50 cm from base center and if the moving speed is fast, would it be possible to reduce this speed few cm before endpoint. ? I just want to reduce vibrations that are produced if the extruder stops without "slow breaking"... A.by Arnix - Delta Machines
Hi to all. Im wondering if it's possible to reduce movement speed few cm before endpoint. e.g. if the object is, lets say 50 cm from base center and if the moving speed is fast, would it be possible to reduce this speed few cm before endpoint. ? I just to reduce vibrations that are produced if the extruder stops without "slow breaking"... A.by Arnix - Delta Machines
Like i wrote several times, this forum is place of priceless value to all developers. Thank you for your suggestions ! This is exactly what i need. btw. i have send you PM. When you find time, take a look. Besten Dank im voraus ! A.by Arnix - Mechanics
Just use a piece of surgical tubing on the end of your vacuum pipe. ** It's not that simple. End has to have bigger diameter because suction will not work ( tested on bunch of examples ). Object has no flat surface. to smash it down on part to pick up and turn on the suck ** this could be another problem because, what will happen with robot position after "extruder" hits on something ?. Will itby Arnix - Mechanics
Very interesting machine :-) Am just interested in movement of suction cup. Is this cup moved separately or is whole head / extruder moved up/down ? A.by Arnix - Mechanics
Hi to all. Am building one vacuum based nozzle. The pump that am planning to use has enough power to pick up requested object but i dont know what would be the best way to construct nozzle. This is a picture of one commercial used solution but i can not figured out if this nozzle is separately controlled or not ( up / down movement ). And the video: Any ideas what would be the best wayby Arnix - Mechanics
What is the wave length of the waves? ** Its hard to measure this but i would say that they are more around 2,5 cm. With this setup: M350 X32 Y32 Z32 I0 ; Configure microstepping without interpolation M350 E32 I1 ; Configure microstepping with interpolation M92 X10 Y10 Z10 E663 ; Set steps per mm // DEF 80 M566 X2500 Y2500 Z2500 E ; Set maximby Arnix - Delta Machines